5AYX	Transferase	date	Sep 14, 2015
title	Crystal Structure Of Human Quinolinate Phosphoribosyltransfe
authors	G.B.Kang, M.K.Kim, Y.J.Im, J.H.Lee, H.S.Youn, J.Y.An, J.G.Lee, S I.Fukuoka, S.H.Eom
compound		source
Molecule: Nicotinate-Nucleotide Pyrophosphorylase [Carboxyl Chain: A, B, C, D, E, F Synonym: Quinolinate Phosphoribosyltransferase [Decarboxyla Qprtase; Ec: 2.4.2.19 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Qprt Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet21a
symmetry	Space Group: P 1 21 1	R_factor 0.201 R_Free 0.259
crystal cell	length a length b length c angle alpha angle beta angle gamma 76.178 137.122 92.650 90.00 103.76 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand		enzyme	Transferase E.C.2.4.2.19 BRENDA
note	5AYX supersedes 3LAR
Gene Ontology	Chain Function Process Component F, A, D, C, E, B
Primary reference	Structural Insights into the Quaternary Catalytic Mechanism of Hexameric Human Quinolinate Phosphoribosyltransferase, a Key Enzyme in de novo NAD Biosynthesis., Youn HS, Gyun Kim T, Kim MK, Bu Kang G, Youn Kang J, Lee JG, Yop An J, Ryoung Park K, Lee Y, Jun Im Y, Hyuck Lee J, Hyun Eom S, Sci Rep. 2016 Jan 25;6:19681. doi: 10.1038/srep19681. PMID:26805589

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (254 Kb) [Save to disk] Biological Unit Coordinates (5ayx.pdb1.gz) 248 Kb CSU: Contacts of Structural Units for 5AYX Structure Factors (936 Kb) Retrieve 5AYX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 5AYX from S2C, [Save to disk] Re-refined 5ayx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 5AYX in 3D

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Visual 3D analysis of 5AYX

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [5ayx_C] [5ayx_A] [5ayx_B] [5ayx_F] [5ayx] [5ayx_E] [5ayx_D] SWISS-PROT database: Domain organization of by SWISSPFAM

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